Use Any SOP Binary With SOP-Java and External-SOP
I just released another library named external-sop, which implements sop-java and allows the user to use any SOP CLI application of their choice from within their Java / Kotlin application!
Implementing Packet Sequence Validation using Pushdown Automata
In the previous blog post I discussed how a formal grammar can be transformed into a pushdown automaton in order to check if a sequence of packets or tokens is part of the language described by the grammar. In this post I will discuss how I implemented said automaton in Java in order to validate…
Using Pushdown Automata to verify Packet Sequences
As a software developer, most of my work day is spent working practically by coding and hacking away. Recently though I stumbled across an interesting problem which required another, more theoretical approach…
Creating a Web-of-Trust Implementation: Accessing Certificate Stores
I made progress towards a full WoT implementation. The current milestone entails integrating certificate stores more closely with the core API. More specifically, an implementation of the Shared PGP Certificate Directory.
Creating a Web-of-Trust Implementation: Certify Keys with PGPainless
Currently I am working on a Web-of-Trust implementation for the OpenPGP library PGPainless. Technically, the WoT consists of a graph where the nodes are OpenPGP keys (certificates) with User-IDs and the edges are signatures. In order to be able to create a WoT, users need to be able to sign other users certificates to create…
Reproducible Builds – Telling of a Debugging Story
I try to make PGPainless build reproducible. A few months ago I added some lines to the build script which were supposed to make the project reproducible by using static file modification dates, as well as a deterministic file order in the JAR archive. However, recently my JAR files started to contain mismatching bytes…
Creating an OpenPGP Web-of-Trust Implementation – A Series
I am excited to announce that PGPainless will receive funding by NGI Assure to develop an implementation of the Web-of-Trust specification proposal! The Web-of-Trust (WoT) serves as an example of a decentralized authentication mechanism for OpenPGP.
PGPainless 1.0.0 Released!
Close to the end of 2021 I’m excited to announce the release of PGPainless version 1.0.0! I feel like it finally reached a state of sufficient maturity to be worthy of a major release with a “1” at the front.
A Simple OpenPGP API
In this post I demonstrate how easy it is to perform OpenPGP operations in your application by using the SOP API.
PGPainless 0.2 Released!
I’m very proud and excited to announce the release of PGPainless version 0.2! Among the major improvements are proper signature verification and a new encryption API.